Engine structure



Sept. 4, 1945. A. FEROY ENGINE STRUCTURE Filed Nov. 9. 1944' m/vmrm an: FROY BY: M S. M

RTTORIVE Y Patented Sept. 4, 1945 7 2,384,292 ENGInE STRUCTURE Arne Feroy, Staten Island,

N. Y., assignor to Bogers Diesel and Aircraft Corporation, New York, N. Y., a corporation of New York Application November 9, 1944, Serial No. 562,701

Claims.

This invention relates to engine structures for opposed-piston internal combustion engines, especially of the class having cylinders parallel to the shaft, th class commonly called barrel type, axial or round engines.

The primary object of the invention is to provide an engine construction having no frame, with individual cylinder liner members assembled in bores in the intake and exhaust manifolds and clamped to end covers, the assembly serving as the engine frame. Another object is to proviade a frameless construction for an opposedpiston barrel engine of relatively low cost and easy manufacture. Another object is to provide a construction for anopposed-piston barrel engine in which the parts may be either cast, or welded of steel.

This and other objects of the invention will be more apparent from the following description in connection with the drawing, in which:

Fig. l is a longitudinal section of the engine construction, and

Fig. 2 is an end view of Fig. 1.

As shown in the drawing the engine structure consists of a number of cylinder liner members l0, having intake ports exhaust ports i2 and water jackets l3, inserted in bores in the intake manifold 2| and exhaust manifold 22. The two manifolds are held together upon the several cylinder liners In by thru-bolts 23. The main bearings for the engine shaft may be mounted in bores 25 in manifolds 2| and 22. The two manifolds 2| and 22 have a telescopic pack Joint 24 in the middle plane of the engine.

Crosshead guides ll of cylinder liners H) are clamped to end covers 30 by triangular clamp plates 3| and bolts 32, crosshead guide bores Hi piloted upon discs 34 which are welded to or integral with end covers 30. Outer main bearings for the engin shaft may be supported in bores 35 in end covers 30.

To assemble the fixed parts of the machine, cylinder liner members ID are inserted in one of the manifolds, say intake manifold 2|. Then the other manifold 22 may be put in place, and thrubolts 22 assembled and made snug. Then after the internal moving parts have been assembled, with the assembly standing vertically, th several clamp plates 3| are grooves in the outer ends of crosshead guides l4.

Then end cover 30 is set in place with its-pilot discs ll entering the ends of crosshead guide bores ll, definitely locating end cover 30 rela- Then bolts 32 may be in- Tum the assembly over tive to the assembly. sorted and tightened.

and repeat from the other end, and then tighten all bolts 23 and 32.

' Reciprocating members comprising pistons 40 and crossheads 4| are operable one pair in each cylinder liner l0 and crosshead guid H, the two sets of recipers being operably connected by any well known barrel engine mechanisms to the shaft which may run in bearings held in bores and 35. Th chambers between manifold 2| and end cover and between manifold 22 and the other end cover 30, in which the mechanisms are operable, are closed by covers 42.

slipped radially into the From the foregoing description it is obvious that an engine construction has been provided having, actually, no frame at all, or in which the intake and exhaust manifolds serve as the frame to support individual cylinder liners each complete with its water jacket and crosshead guides.

Each cylinder liner, manifold and end cover can be welded of steel or formed as a casting as desired.

Having thus describe the invention, it is obvious that the objects'as stated have been attained. While one embodiment'of the invention has been shown and described, it is understood that changes may be made in the arrangement and construction without departing from the spirit or scope of the invention as expressed in the following claims.

I claim:

1. A construction for an opposed-piston internal combustion engine comprising individual water-jacketed cylinder liners each having intake ports toward one end and exhaust ports toward the other end thereof, intake and exhaust manifold members and a series of bores therein receiving said liners, .thru-bolts clamping said manifold member upon said liners to form a rigid structur with said intake ports opening into said intake manifold and said exhaust ports opening into said exhaust manifold, cover members at. the ends of said liners, and means for clamping said cover members to the ends of said liners.

2. A construction for an opposed-piston internal combustion engine comprising individual cylinder liners each having a water-jacketed central cylinder portion. with intake ports toward one end and exhaust ports toward the other end thereof and crosshead guid portions of larger bore than said cylinder portion at the two ends thereof intake and exhaust manifold members and a series of bores therein receiving said liners, and thru-bolts clamping said manifold members upon said liners to form a rigid-structure.

8. A construction for an opposed-piston in nal combustion engine comprising individual cylinder liners each having a water-jacketed centhru-bolts clamping said manifold members upon said liners to form a rigid structure, end cover membersattheendsofsaidliners,meansfor clamping said cover members to the ends of said liners, and a removable closure extending from each of said manifold members to its adjacent end cover member. a

4. A construction for an opposed-piston internal combustion engine comprising individual cylinder liners each having a water-jacketed central cylinder portion with intake ports toward one end and exhaust ports toward the other end thereof and cmsshead suide Portions of larger bore than said cylinder portion at the two ends thereof, intake and exhaust manifold members and a series of bores therein receiving said liners, thru-boits clamping said manifold members upon said liners to form a rigid structure, end cover members at the ends of said liners, means for clamping said cover members to the ends of said liners a removable closure extending from each of said manifold members to its adjacent end cover member, said clamping means comprising pilot discs locating said end cover members relative to said crosshead guide portions, and clamps between the ends of said crosshead guide portions.

6. A construction for an opposed-piston internal combustion engine of the class having cylinders parallel to the shaft, comprising individual cylinder liners each having a water Jacketed central portion and croashead snide portions of larger bore at the two ends thereof, intake and exhaust manifolds and a series of bores therein receiving said liners, thru-bolts clamping saidmanifoldsuponsaidlinerstoformarigid engine structure, an axial bore in each of said manifolds capable of supporting main bearings for said shaft, a telescopic Joint connecting said axial bores permitting expansion of said cylinder liners without leakage outwardly from within said axial bores, cover members at the ends of said liners, means for clamping said cover members to the ends of said liners, and closures extending between said manifolds and said cover members and enclosing said crosshead guide portions of said'cylinder liners.

ARN'I: PERCY. 

